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Fix tline wrapping when out of map bounds #31

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Fix tline wrapping when out of map bounds #31

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6 changes: 3 additions & 3 deletions src/pico8/gfx.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -611,9 +611,9 @@ void vm::api_tline(int16_t x0, int16_t y0, int16_t x1, int16_t y1,
for (;;)
{
// Find sprite in map memory
int sx = (ds.tline.offset.x + int(mx)) & 0x7f;
int sy = (ds.tline.offset.y + int(my)) & 0x3f;
uint8_t sprite = m_ram.map[128 * sy + sx];
int sx = (ds.tline.offset.x + int(mx));
int sy = (ds.tline.offset.y + int(my));
uint8_t sprite = api_mget(sx, sy);
uint8_t bits = m_ram.gfx_flags[sprite];

// If found, draw pixel
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